Siegfried & RoyDo Bette Midler

2/21/2008 2:36 PM PST

Siegfried & Roy Do Bette Midler

Siegfried Fischbacher (left) and Roy Horn (right) navigated their way around the Las Vegas scene last night at the premiere of Bette Midler's new show.

In 2003, Siegfried and Roy ended their long-running Vegas act after Roy was bitten on the neck by their white tiger, Montecore. The performing partners plan to stage a one-night only comeback next February to raise money for the Lou Ruvo Brain Institute.